Re: Dynamic switch from Console on ttyS0 to fbcon

["Amol Lad" <amol.lad@gmail.com>]

well.... very easy solution

1. Pass console=ttyS0 command line
2. modprobe fbcon
3. a.out 1>/dev/tty0 2>/dev/tty0

So, now all outs from a.out will come on FB

thanks

On Wed, Aug 20, 2008 at 12:46 PM, Amol Lad <amol.lad@gmail.com> wrote:
> On Wed, Aug 20, 2008 at 12:21 PM, Geert Uytterhoeven
> <geert@linux-m68k.org> wrote:
>> On Wed, 20 Aug 2008, Amol Lad wrote:
>>> I'm trying to switch the console from ttyS0 to frame buffer.
>>>
>>> The problem is if "console=ttyS0,115200n8" is passed on u-boot command
>>> line then the console switch to framebuffer does not happen after
>>> doing modprobe fbcon.
>>>
>>> If "console=ttyS0,115200n8" argument is not passed on u-boot then the
>>> console switch happens after modprobe fbcon.
>>>
>
>> Have you tried
>>
>>    console=ttyS0,115200n8 console=tty0
>>
>> ? This will make console output go to both, and console input will come
>> from tty0.
>
> I tried that. This makes user space to use tty0 as /dev/console. In
> this case I did "modprobe fbcon" (from telnet session) and I get
> console on FB.
> But I want console to stay on ttyS0 if "modprobe fbcon" is not done.
> This way based on some /proc entry I can decide to switch to frame
> buffer console in startup script or stay in ttyS0 mode
>
>>
>> Gr{oetje,eeting}s,
>
> Thanks
> Amol
>
>>
>>                                                Geert
>>
>> --
>> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>>
>> In personal conversations with technical people, I call myself a hacker. But
>> when I'm talking to journalists I just say "programmer" or something like that.
>>                                                            -- Linus Torvalds
>>
>

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